Measurement of the Thomson heat distribution in a thin-wire metal

Author

Amagai, Yasutaka ; Fujiki, Hiroyuki

Author_Institution

Nat. Metrol. Inst. of Japan, Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba, Japan

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

52

Lastpage

53

Abstract

We have measured the temperature distribution of a thin-wire metal due to the Thomson effect at room temperature when a DC current is applied. To measure the Thomson effect, we have developed new test equipment for a thin-wire sample. We have clearly observed the small heat generation and absorption in a thin Pt wire on the order of a few millikelvins under the existence of Joule heating. These measured data are well-fitted by simulation data based on the heat-conduction equation.

Keywords

Joule-Thomson effect; Thomson effect; electric variables measurement; heat conduction; heat measurement; platinum; temperature distribution; temperature measurement; test equipment; wires; DC current; Joule heating; Pt; Thomson effect measurement; Thomson heat distribution measurement; absorption; heat generation; heat-conduction equation; temperature 293 K to 298 K; temperature distribution measurement; test equipment; thin-wire metal sample; Current measurement; Heating; Mathematical model; Temperature distribution; Temperature measurement; Wires; Electrical variable measurement; Thermal converters; Thermal variable measurement; Thermoelectricity;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898254

Filename

6898254